Further building ideas

After you get all your buildings to lvl 5 what then?

I think it would be cool to have lvl's up to 10. However instead of just increasing production by 1 per cycle, your building might gain the ability to be a storehouse at the same time while producing or it might give you settlers a wagon so the time from building to storehouse is quicker. Or you could have 2 settlers working the same building to make it faster. Maybe it could be possible to combine the whole copper chain into one lvl 10 copper mine. So for example your copper mine could mine, smelt, and turn the bars into either tools or swords.

To chose from these upgrade options there should be a menu where you can manage your buildings. Like I could chose whether I wanted my farm to get an extra settler or a wagon. There could also be a continuous buff upgrade, so for as long as the resorts are available, your provision house will automatically buff that building.

Most of these ideas will never happen but I find it important to throw out ideas.

They could easily add a level six that doesn't increase the number of things your building makes, but reduces the time.